Spectroscopy of three strongly coupled flux qubits

A. O. Niskanen; K. Harrabi; F. Yoshihara; Y. Nakamura; J. S. Tsai

doi:10.1103/PhysRevB.74.220503

Spectroscopy of three strongly coupled flux qubits

A. O. Niskanen^*
, K. Harrabi
, F. Yoshihara
, Y. Nakamura
, J. S. Tsai

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

33 Scopus citations

Abstract

We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between neighboring qubits varying between 0.75 GHz and 6.05 GHz. The observed complicated spectra agree well with eight-level theory. The experiments are relevant for the realization of a tunable coupling between qubits.

Original language	English
Article number	220503
Journal	Physical Review B - Condensed Matter and Materials Physics
Volume	74
Issue number	22
DOIs	https://doi.org/10.1103/PhysRevB.74.220503
State	Published - 2006
Externally published	Yes

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Condensed Matter Physics

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10.1103/PhysRevB.74.220503

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title = "Spectroscopy of three strongly coupled flux qubits",

abstract = "We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between neighboring qubits varying between 0.75 GHz and 6.05 GHz. The observed complicated spectra agree well with eight-level theory. The experiments are relevant for the realization of a tunable coupling between qubits.",

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AU - Niskanen, A. O.

AU - Harrabi, K.

AU - Yoshihara, F.

AU - Nakamura, Y.

AU - Tsai, J. S.

PY - 2006

Y1 - 2006

N2 - We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between neighboring qubits varying between 0.75 GHz and 6.05 GHz. The observed complicated spectra agree well with eight-level theory. The experiments are relevant for the realization of a tunable coupling between qubits.

AB - We have carried out spectroscopic measurements of a system of three strongly coupled four-junction flux qubits. The samples studied cover a wide range of parameters with the coupling energy between neighboring qubits varying between 0.75 GHz and 6.05 GHz. The observed complicated spectra agree well with eight-level theory. The experiments are relevant for the realization of a tunable coupling between qubits.

UR - https://www.scopus.com/pages/publications/33845261185

U2 - 10.1103/PhysRevB.74.220503

DO - 10.1103/PhysRevB.74.220503

M3 - Article

AN - SCOPUS:33845261185

SN - 1098-0121

VL - 74

JO - Physical Review B - Condensed Matter and Materials Physics

JF - Physical Review B - Condensed Matter and Materials Physics

IS - 22

M1 - 220503

ER -

Spectroscopy of three strongly coupled flux qubits

Abstract

ASJC Scopus subject areas

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